A dead mother. A missing father. A mysterious man.

They all spell trouble for private investigator Carol Sabala. When Carol's mother dies unexpectedly, Carol is left with no family—only money, grief, and an envelope. Her mother has charged her with a mission: deliver the envelope to her long-lost father. Enroute to Zihuatanejo, Mexico, to track down her father, Carol encounters the alluring Mark Escalante, who snares her in a deadly pursuit of his own.